drm/edid: Add modes for Established Timings III section

Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 91 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 858fedc33d9b..58b67932f04a 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1134,6 +1134,94 @@ static int drm_cvt_modes(struct drm_connector *connector,
         return modes;
 }
 
+static const struct {
+        short w;
+        short h;
+        short r;
+        short rb;
+} est3_modes[] = {
+        /* byte 6 */
+        { 640, 350, 85, 0 },
+        { 640, 400, 85, 0 },
+        { 720, 400, 85, 0 },
+        { 640, 480, 85, 0 },
+        { 848, 480, 60, 0 },
+        { 800, 600, 85, 0 },
+        { 1024, 768, 85, 0 },
+        { 1152, 864, 75, 0 },
+        /* byte 7 */
+        { 1280, 768, 60, 1 },
+        { 1280, 768, 60, 0 },
+        { 1280, 768, 75, 0 },
+        { 1280, 768, 85, 0 },
+        { 1280, 960, 60, 0 },
+        { 1280, 960, 85, 0 },
+        { 1280, 1024, 60, 0 },
+        { 1280, 1024, 85, 0 },
+        /* byte 8 */
+        { 1360, 768, 60, 0 },
+        { 1440, 900, 60, 1 },
+        { 1440, 900, 60, 0 },
+        { 1440, 900, 75, 0 },
+        { 1440, 900, 85, 0 },
+        { 1400, 1050, 60, 1 },
+        { 1400, 1050, 60, 0 },
+        { 1400, 1050, 75, 0 },
+        /* byte 9 */
+        { 1400, 1050, 85, 0 },
+        { 1680, 1050, 60, 1 },
+        { 1680, 1050, 60, 0 },
+        { 1680, 1050, 75, 0 },
+        { 1680, 1050, 85, 0 },
+        { 1600, 1200, 60, 0 },
+        { 1600, 1200, 65, 0 },
+        { 1600, 1200, 70, 0 },
+        /* byte 10 */
+        { 1600, 1200, 75, 0 },
+        { 1600, 1200, 85, 0 },
+        { 1792, 1344, 60, 0 },
+        { 1792, 1344, 85, 0 },
+        { 1856, 1392, 60, 0 },
+        { 1856, 1392, 75, 0 },
+        { 1920, 1200, 60, 1 },
+        { 1920, 1200, 60, 0 },
+        /* byte 11 */
+        { 1920, 1200, 75, 0 },
+        { 1920, 1200, 85, 0 },
+        { 1920, 1440, 60, 0 },
+        { 1920, 1440, 75, 0 },
+};
+static const int num_est3_modes = sizeof(est3_modes) / sizeof(est3_modes[0]);
+
+static int
+drm_est3_modes(struct drm_connector *connector, struct detailed_timing *timing)
+{
+        int i, j, m, modes = 0;
+        struct drm_display_mode *mode;
+        u8 *est = ((u8 *)timing) + 5;
+
+        for (i = 0; i < 6; i++) {
+                for (j = 7; j > 0; j--) {
+                        m = (i * 8) + (7 - j);
+                        if (m > num_est3_modes)
+                                break;
+                        if (est[i] & (1 << j)) {
+                                mode = drm_find_dmt(connector->dev,
+                                                    est3_modes[m].w,
+                                                    est3_modes[m].h,
+                                                    est3_modes[m].r
+                                                    /*, est3_modes[m].rb */);
+                                if (mode) {
+                                        drm_mode_probed_add(connector, mode);
+                                        modes++;
+                                }
+                        }
+                }
+        }
+
+        return modes;
+}
+
 static int add_detailed_modes(struct drm_connector *connector,
                               struct detailed_timing *timing,
                               struct edid *edid, u32 quirks, int preferred)
@@ -1181,6 +1269,9 @@ static int add_detailed_modes(struct drm_connector *connector,
         case EDID_DETAIL_CVT_3BYTE:
                 modes += drm_cvt_modes(connector, timing);
                 break;
+        case EDID_DETAIL_EST_TIMINGS:
+                modes += drm_est3_modes(connector, timing);
+                break;
         default:
                 break;
         }